Can end lining machine



3 Shee'ts-Sheet l M. L. HEALD CAN END LINING MACHINE Filed Sept. 23, 1935 Sept. 1, 1936.

ATTORNEYS Sept. 1, 1936. HEALD CAN END LINING MACHINE Filed Sept. 25, 1935 3 Sheets-Sheet 3 ATTORNEYS Patented Sept. 1, 1936 Ares ATET OFFICE CAN END LINING MACHINE Application September 23, 1933, Serial No. 690,749

13 (Jlaims. (Cl. 113-80) 'The present invention relates broadly to can end lining machines for rectangular and nonclrcular or irregular shaped can ends and has particular reference to machines that present '5 can ends to a movable liquid compound dispensing nozzle carried in a rotating head and actuated to follow the lining channel of the end presented with a constant lineal speed of travel so that a uniform coating of such compound is 10 deposited in the channel of the end.

The invention contemplates the control both as "to movement and as to position of a traveling 'noz'zle which is carried by a uniformly rotating head, the nozzle being caused to describe a path 15 of travel which coincides with the lining channel of the presented can end to be lined and the nozzle is altered, in its position relative to the moving head so that it passes all lineal sections of the can end channel at a uniform rate of speed.

" 120 An object of the invention is the provision of a lining machine for applying an even coating of liquid compound or other lining material to the "lining channel of a properly presented can end which is automatic in its operation so that a discharge of the compound from the nozzle is made only where there is a positioned can end to receive it and in the event that an end is not properly presented at a given cycle of operation of the machine 'there'will be no discharge from the nozzle for that cycle.

Another object of the invention is the provision of a valve control of the nozzle discharge of a lining machine including a valve locking device which prevents accidental and inadvertent noz- 'z leopening, a properly presented can end unlocking the device for a complete cycle of lining oper- "ations'. 4 A further object of the invention is the provision of a lining machine of the character de '40 scribed having both automatic and manually controlled devices for locking the nozzle valve in non-operative position which locking operation 'of the manual control also prevents starting of the'other operations of the apparatus in addition to the nozzle discharge. Numerous other objects and advantages of the invention will be apparent as it is better underf'stood from the following description, which, 50 taken in connection with the accompanying drawings, thereof.

Referring to the drawings: Figure 1 is a. plan view of a can end lining v.55 machine embodying the present invention, parts discloses a preferred embodiment being broken away, and a wiring diagram for the driving motor being shown;

Fig. 2 is a longitudinal sectional view taken substantially along the line 2-2 in Fig. lwith parts removed;

Figs. 3 and 4 are transverse sectional views taken substantially along the lines 33 and 44 in Fig. 1, parts being broken away;

Figs. 5, 6 and '7 are fragmentary elevations of the1 nozzle control devices in various positions; an

Fig. 8 is an enlarged sectional view of the nozzle taken substantially along the line 88 in Fig. 1.

The present invention contemplates the automatic lining of irregular shaped can ends and the apparatus disclosed in the drawings by way of one embodiment thereof comprises a magazine for holding stacked can ends to be lined. Can end separating devices arranged in the magazine are provided for individually cutting out the lowermost end from the stack. The same frame supports both the magazine and a vertically movable non-rotating can end support located at a lining station. The separated end is moved on to this support by a reciprocating feed bar or conveyor.

The can end support upon receiving its superimposed end lifts the end into lining position, in which position the lining channel of the end is located directly beneath a constantly moving liquid dispensing or compound lining nozzle carried in a'uniformly rotating lining head, all of these parts being located at the lining station. The nozzle is carried in a compound lever unit which is pivotally supported in the head and stationary cams operating on the lever system maintain the nozzle in a path of travel which coincities with the can end lining channel.

The lifting of the can end into lining position brings it into engagement with a yieldabie, vertically movable clamping latch pad and lifts the pad unlocking a valve holding device associated with the discharge valve of the dispensing nozzle.- When unlocked in this manner the nozzle valve parts may be'actuated for a lining operation which actuation is automatic, the nozzle valve being moved so that the lining compound is dis charged from the nozzle as the latter moves with its uniform lineal travel over the can end channel.

The lining material is thus deposited in a umform thickness on the can end. After lining the can end is returned into lowered position by the can support and into the zone of action of the feed bar which discharges it from the machine as a fully lined end.

Provision is also made for manually preventing opening of the nozzle valve and'operation of the nozzle and this manual control is associated with the other operations of the machine to the end that dripping or leaking of the lining material from the nozzle is completely obvitated.

lining channel B adapted to receive the lining material which may be the usual lining compound or any suitable sealing liquid.

The ends A to be lined are stacked within a magazine l3 which includes a pair of inclined rear supports or guide members l4 and a cooperating inclined front guide l5. Each rear support l4 loosely engages a rounded rear corner of each can end in the stack (Fig. l) and prevents lateral shifting of the stack. 3 -3.:

Each rear guide member l4 and the front guide l5 isindirectly carried on the frame table l2 and for this purpose each rear guide is formed with a foot I6 and the front guide is enlarged into a cylindrical housing I! part of which is bolted directly to the table.

The bottom of the magazine l3 from which the can ends A are individually removed comes between the base or feet of the guides l4, l5 and after the lowermost can end has been brought into separated position in the bottom of the magazine it is moved laterally over the table l2 as it is transferred into the lining station; Parallel guide bars or plates I8, I9, 20 mounted on the table top, provide a path of travel leading from the magazine into the lining station.

The plate I8 is bolted on the table top at the rear of the can end passage and one end extends into the bottom of the magazine. It is on this plate that the guide feet l6 rest, bolts extending through the feet of the plate and into the frame. v

Plates I9, 20 are opposite to the plate ilfl and rest on the front side of the can end passage. These plates form one guiding line for the can ends but are spaced apart a slight distance where they extend into the magazine. This space provides clearance for a part of the can end separating device to be hereinafter described. The enlarged base ll of the front guide l5 rests upon and is bolted to the plates i9, 20 the whole being bolted on the table l2.

The inner opposed faces of the plates l8, I9, 20 are grooved at 2| (Fig. 1) to form a path for the flanges of the can ends and the plate I8 is partially cut away or recessed along its upper surface at 22 where it extends into the magazine l3. This recess is just as deep as the groove 2| and forms an entrance for the flange of the end as it is separated from the stack and moved into the bottom of the magazine. In a similar way the plates I9, 20 are cut away or recessed at 23 to form an entrance for the end flange along the front side of the magazine.

In the separation of the lowermost end from the stack it is pivoted along its rear side with its flange held in the recess 22 and is brought from the inclined position it assumes in the stack into a horizontal feeding position (note the lowermost end in Fig. 4) In this pivotal movement the front side of the end first rests upon the upper surface of a rotating cut-out or separator disc 24 (Fig. 4) and as the disc turns the edge 5 of the flange is caught in a mouth or widened. section 25 of a helical groove 26 formed in the periphery of the disc. This groove advances: downwardly as the disc turnsand carries the engaged can end flange through the positions 10 just described. Disc 24 is mounted on the upper end of a vertical shaft 21 journaled in a bearing '28 depend-'1 ing from the under side of the table section l2; of the frame H. The engaged part of the dlsc,f; l5

that is, the part extending under the stack of" -ends, projects in the space between the plates} I9, 20 and as soon as the lowermost canendf passes into the groove 26 the can end next'abovei comes into engagement with and is supported on 30 the upper surface of the rotating disc. The disc 24 is enclosed within the enlarged base I! of the front guide l5, as previously mentioned.

The lower end of the disc shaft 21 carries a bevel gear 31 which meshes with a gear 39 se- 12 cured to one end of a horizontal shaft 4| which is journaled in front and rear bearings 42 formed in the frame of the apparatus, the front hearing, which may be an integral part with the bearing 28 and the rear bearing being formed in abracket 43 depending from the table l2.

A bevel gear 44 is secured to the end of the" shaft 4| oppposite the gear 39 and meshes with a gear 45 secured to a horizontal drive shaft 46 (Figs. 2 and 4). Shaft 46 is joumaled in bearings 48 and 49 formed respectively'in the frame i I and in a bracket 5| depending from the frametable I2. The shaft 46. carries a gear 50 (see also Fig. l) which is driven by a motor pinion 52 V secured to the end of the motor shaft 53 of an to electric motor 54. The motor constitutes the prime operating energy for the machine.

The conveying device for transferring the separated can end A resting in the bottom of the magazine to the lining station comprises a recip- I 45 rocating feed bar 6i (Figs. 1, 2 and 4) which is secured to a slide 62 having laterally projecting tongues 63 at its top which are slidably engaged in grooves 64 formed in the table top l2. These grooves are parallel to and are directly beneath '50 the can end pathway between the guide plates l8, l9 and 20.

The slide 62 is also formed with a pair of depending lugs 66 which are pivotally secured on a stud 61 to one end of a link 68. The opposite 55 end of link 68 is pivoted on a. stud 69 carried in a one end of a. lever 12 which is supported on a stud 13. Stud 13 is mounted in a boss 14 (Fig.

4) projected inwardly from and which may be formed integrally with the front wall of the main frame II, the stud being further heldby a nut 15.

Oscillation of the lever 12 on its pivot 13 reciprocates the slide 62 and its feed bar iii and for this purpose the lever is connected at 18 (Fig. 2) 6 to one end of a link I9. The opposite end of the link is pivoted at 8| to one leg of a bell crank lever 82. The bell crank lever is pivoted on a stud 83 mounted in a bracket 84 extending from an end wall of the main frame H, and its other 70 leg 86 rotatably carries a cam roller B'Iwhich is mounted on a pin 88 (see also Fig. 4). The roller 81 operates in a groove 89' of a cam 9| fixed on the shaft 4| intermediate its bearings 42.

The feed bar 6| is provided with spaced spring I comprises a lifter pad III (Figs. 2 and 3).

held dogs 95 (Fig. 2) which engage behind a can end when in rear position and then advance it with the forward movement of feed bar. There is an idle station intermediate the magazine and the lining stations and accordingly the ends are advanced by two steps in their passage to the lining station.

At the idle station stationary spring held dogs 96 (Fig. 1) similar to the feed dogs 95 catch each end brought into the station and hold it at that station while the feed bar M is receding on its back stroke. Dogs 96 are pivoted in brackets 98 secured to the frame table I2 and the brackets are seated in pockets 99 being held in position by screws IOI. There are two such dogs and brackets, one on each side of the feed bar 6|.

It is on the second forward stroke of the feed bar SI for each can end A that the end is advanced from the idle station and moved into the lining station. The non-rotating can end support which received the end at the lining station This pad is in axial alignment with the lining head rotating above the table I2 and the can end is lifted by the pad to raise it into lining position.

Lifter pad I II is formed with a stem I I 2 having sliding movement in a bearing I I3 formed in and depending from the under side of the frame table I2. The lowermost end of the stem H2 is pivotally connected at II 4 to one end of a short link M5, the other end of which connects at M6 to one end of a lever II1. This lever H1 is centrally pivoted on a stud I I8 secured in a boss II9 formed in a vertical wall of the man frame II.

The free end of the lever carries a cam roller I24 rotatably mounted on a stud I:I5. The roller I24 operates in a groove I26 of a face cam I21 mounted on the horizontal drive shaft 46 adjacent the bearing 48. Rotation of the shaft 46 is thus transmitted through the cam and lever parts just described to reciprocate the stem II2 with its pad III to raise the can end into lining position for the lining operation which will now be described.

The lining head, designated generally by the reference numeral I35 (Figs. 1 and 3) comprises in part a head body I36 formed as an integral part of a tubular stem I31 which extends upwardly from the body and which is journaled in a bearing I38 formed in an auxiliary frame or housing I39. This housing is supported upon and is bolted to the top or frame table I2. The body I36 is rotated 'at a uniform speed as long as the-motor 54 is running.

The upper end of the stem I31 where it projects beyond the bearing I38 carries a gear I42 which is keyed in place and further held by a lock nut I43 threaded on the upper end of the stem. The gear I42 is driven through a gear train of three gears meshing with an intermediate idler gear I44 which turns on a vertical stud I45 held in a boss I41 by a nut I46. The boss I41 is formed in a web I48 of the auxiliary frame The intermediate gear I44 also meshes with a driving gear I5I which is keyed to the upper end of a vertical shaft I52. Shaft I52 at its top end is journaled in a bearing I53 formed in the web I48. The lower end'of the shaft is journaled in a bearing I54 depending from the under side of the frame table I2. Shaft I52 below this hearing carries a bevel gear I55 which meshes with and is driven by a bevel gear I56 mounted on the horizontal drive shaft 46-.

The rotating head body I36 carries the.c0m-

pound lever unit and the lining nozzle previously referred to and is formed with a boss I6-I which serves as a bearing for a short vertical shaft I62 of the lever unit. This shaft projects beyond its bearing at each end and the upper end is formed into a lever arm I63 (see also Fig. 1). Lever arm I63 carries a stud I64 on which a roller I65 is rotatably mounted and by means of which the shaft I62 is oscillated. The roller I65 operates in the outer cam groove I66 of a stationary face cam I61 which is suspended from and bolted to a flange I68 formed in the lower end of the bearing The lower end of theshaft I62 carries other parts of the compound lever unit, being pinned to an arm I1I 'which is extended vertically on its inner side into a boss I12. This boss is hollow and provides a bearing support for a second short vertical shaft I13. The upper end of this shaft I13 is' also formed as a lever arm I15 which extends laterally and upwardly as a hollow boss I16, in the hollow of which a stud I11 tightly fits.

A cam roller I18 (see also Fig. 8) is rotatably mounted on the stud and operates in a second or inner cam groove I19 cut in a lower stepped por tion I8I of the cam I61. This cam control determines the position of the lining nozzle which is directly carried by the lever system including the shaft I13 and arm I15, the nozzle being located directly below and in axial alignment with the center of the cam roller I18 as will now be explained in detail (see Figs. 3 and 8).

The lower end of the shaft I13 carries a lever arm I84 which extends laterally and in the same direction as the arm I15 and the former is swelled out and projected upwardly as a nozzle housing I85. The lower end of this housing is recessed and confines a lining chamber I86 closed at its bottom by an apertured cup member I88 which is threadedly connected at I89 tothe nozzle housing. A hollow nipple I9I is formed in the housing wall and projects outwardly for connection with the end of a flexible tube I93 by means of which the lining chamber is supplied with compound.

The lower apertured cup member I88'of the nozzle is tapered and a pointed nozzle tip I91 having a small orifice in its end is held on to the lower end of the cup member by a threaded clamping ring I98. from the nozzle flows through the orifice in the nozzle tip. This orifice is normally held closed The compound in passing by a needle valve 28I which is centrally located ing wall by a spacing washer 296 held in position by a lock nut 281. The diaphragm is impervious and provides a liquid tight seal preventing any leakage of the compound from the top of the chamber and at the same time allows for free vertical movement of the valve. 7

The needle valve 28I extends above its diaphragm connection as an enlarged stem and the top of the stem is pinned to and carries a flanged collar 2 II which is held under compression from above by a spring 2I2. Spring 2I2 surrounds the lower protruding end of the stud I11 which is in axial alignment with the valve stem.

The flanged collar 2 rests on and extends between the arms of a bifurcated projection 2l6 (Figs. 3, 5 and 8) which extends laterally from a hollow hub end 2I1 of a vertical sleeve 2I8 carried inside of the rotating head stem I31.

A stationary vertical shaft 220 extends in the center throughout the length of the sleeve 2I8 and protrudes both above and below. At the top the shaft is held on the frame I39 being threadedly secured in a boss 222 formed in a top horizontal wall 223 of the frame. A lock nut 224 threadedly engages a reduced end of the shaft at this point and rigidly clamps the parts together.

Shaft 22!) is hollow for the greater part of its length and is used to conduct the liquid compound from anysuitable source of supply into the machine so as to be available in the nozzle chamber I86. A hollow bore 225 is thus provided in the shaft and its upper end connectswith the interior of a flexible tube 226 which is positioned over the shaft end and which leads from the source of supply. The bottom of the bore- 225 communicates with a lateral aperture 2128 cut through one side of the shaft and this aperture 'joins the shaft interior with a chamber 229 surrounding the shaft at this position and formed inside of the hollow hub 2" of the sleeve H8. The wall of this chamber is tapped at 23I to receive one end of the flexible nozzle tube I93 by means of which the compound is conducted to the nozzle chamber I86 (Fig. 8).

The nozzle valve 28I is raised to effect the dischargeof lining compound from the nozzle chamber I86 and through the orifice of the nozzle tip by a lifting of sleeve M8 and against the resistance of the spring 2I2. Sleeve 2I8 adjacent its upper end carries two aligned pins 235 (Fig. 3) which project out from its sides and these are engaged within a slot-236 of a grooved collar 231 mounted on the sleeve. Thecollar is loose on the sleeve and is held down over the pins by a spring 238 surrounding the upper part of the sleeve just above the collar. The upper end of the spring is held by a pair of lock nuts 239 threadedly secured to the sleeve.

The grooved collar 231 is positively raised at each cycle of operation as long as the apparatus is operating and such action may or may not lift the sleeve 2I8 through the spring 238 The bifurcated end of a three arm bell crank lever 2M (Figs. 3 and 5) effects such movement and each of the forked ends of the bifurcated arm of the lever carries a stud 242 on which a roller 243 is .rotatably mounted. The two rollers 243 project into a groove 244 of the collar 231.

The bell crank lever 24I is pivoted on a stud 241 secured in a side wallof the auxiliary frame I39 (Fig. l) and the second arm of the lever carries a stud 248 (Figs. 3 and 5) which rotatably supports a cam roller 249. Roller 249 oscillates the lever and rides upon the cam surface of an edge cam 25I. The third arm of the bell crank lever MI is a substantially vertical arm 253 which engages one end of a spring 254, the other end of which is held by a lug 255 formed as a projection in one side wall of the auxiliary frame I39. This springresists pivotal movement of the lever 24I'and always holds the roller 249 against the cam 25I.

The cam 25I is secured by screws 251 to the face of a bevel gear 258 (Fig. 3) mounted on a horizontal shaft 259 journaled in a bearing formed in the side wall of the auxiliary frame I39 (see Fig. 1). The gear 258. meshes with a bevel gear 26I (Fig. 3) which may be integrally formed with the intermediate gear I44.

If the lifting of the collar 231 is transmitted ,fiowing from the nozzle discharges into the can through the spring 238 to lift the sleeve 2I8 the needle valve of the nozzle is correspondingly lifted but if the sleeve 2I8 is held down and prevented from raising the spring 238 takes up the stroke, the collar sliding on the sleeve at sucha 5 time. The sleeve is held locked against movement until it is unlocked by a properly positioned can end on the lifter pad I I I.

Suchv a locking device is located adjacent the lower end of the sleeve 2! and is connected with a stationary end clamping head21l (Figs. 3, 5, 6

and 7) which engages the can end as it is raised into lining position by the lifter pad. The clamping head 21I is formed with a vertical stein 212 which extends into the bottom of a bore 213 formed in the lower end of the stationary shaft 229. The stem 212 is normally held down bythe pressure of a spring 214 also located in the bore 213. A pin216 extends across the bore and passes through a vertical slot 215 out through the stem 212 near its .top end. The ends of the pin are seated in the shaft 220. This provides a limited sliding connection between the clamping head and the stationary shaft.

The locking device comprises a collar 211 which 25 surrounds the stem 212 adjacent the clamping head and this collar rotates with rotation of the lining head I36 on the stationary stem being held between spaced collars 218 pinned on the clamping head stem. Collar 211 is pivoted at 219 to a link 28I, the otherend of which is pivoted to a hooked lever 283 mounted on a. stud 284 held in a curved bracket 285 depending from the under side of the lining head body. The lever 283 has avertically extending hook arm 281 which provides the latch element for the locking device and this engages a shelf-dike projection 288 extending out from the hub end 2".

A properly positioned can end coming into lining position on the rising lifter pad III engages and lifts the clamping head and in so doing raises the collar 211, rocking the lever 283 in a clockwise direction from the position shown in Fig. 3 through that of Fig.7 and into the position of Fig. 5. f This action disengages the hook 281 from the shelf 288. The sleeve 2I8 is now unlocked and when the collar 231 moves up in the next cycle of the machine the sleeve 2I8 moves with it and this opens the needle valve 20I The liquid compound end channel B as the nozzle moves along the channel path at a uniform rateof travel, and the flow being uniform the amount of lining is correspondingly even.

If there is no can end in position on the lifter pad I II when it is raised, the clamping head 21If remains stationary as there is nothing to engage it. The lifter pad III is recessed at 29I and this permits full lifting action of the lifter pad without unlatching the nozzle locking device.

Brief mention has been made of a manual lock for the needle valve 28I to prevent any inadvertent nozzle discharge and this lock also stops and prevents operation of the machine. An operating handle lever 293 (Figs. 1 and 3) is provided for the manual lock device and is pivoted on a stud 294 secured in the side wall of the auxiliary frame A lever arm 295 is an integral part of the handie lever and is pivotally connected at 296 to the lower end of a vertical link 291. The upper end of the link is connected at 298 to one end of a lever 299 pivoted at its center on a stud 30I mounted in the side wall of the auxiliary frame I39. The free end 302 of the lever 299 is bifurcated and its arms straddle the shaft 220 just beneath the frame wall 223. A spring held locking pawl 303 pivotally connected with the handle lever 293 engages one or the other of a pair of notches 304, 305 out in the edge of a plate 303 screwed to a' side wall of the frame I39.

When the handle is in the position shown in Fig. 3 the locking pawl 303 is in the notch 304, this being an unlocked or machine operating position. when the handle is depressed into its locking position the pawl is engaged in the notch 305.

Movement of the handle into this latter position brings the bifurcated end parts 302 of the lever 299 into engagement with the lock nuts 239 (as shown in Fig. 7) and as long as this position is maintained the sleeve 2i8 and its associated neeedle valve 20l' cannot be raised nor the nozzle opened.

The second function of the handle lever 293 which has to do with preventing operation of the machine as mentioned above is suitably associated with the driving motor 54. By way of example there is graphically indicated in the drawings an electric motor circuit which is broken so that an electric current cannot flow into the motor for actuating it as long as the handle lever is in its depressed or locking position.

The mechanical features for such performance comprise a boss or projection 309 (Figs. 1 and 3) carried on the handle lever which strikes against and depresses a lever 3| l of an electric switch 3| 2 mounted on the auxiliary frame I39.

The switch 3l2 is located in the electric motor circuit. This circuit is diagrammatically shown in Fig. 1 and comprises a wire 316 connecting one side of the switch with one side of the motor. The opposite motor wire of the circuit comprises a wire 3!! which extends from the motor 54 to one side of a suitable source of electric energy illustrated in the diagram as a generator 3l8. The other side of this generator is connected by a wire M9 to the switch 3l2. When the switch lever 3| l is depressed by the projection 309 of the handle lever in its locking position, the motor circuit is opened at the switch and the machine may not be operated.

After a can end A has been lined, the lifter pad I l l is returned to its lowered position bringing the can end down on the feed bar 6|. Upon the next forward stroke of the bar its last dog 95 engages behind the lined end and sweeps it from the lifter pad moving it to a suitable place of deposit. The drawings disclose for this purpose a discharge belt 325 (Figs. 1 and 2) which at the machine end operates over a pulley 323 mounted on a shaft 329 journaled in brackets 33l formed as a part of the main frame II and carries the lined ends A to any convenient place of discharge.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes'may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the in?- vention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

1 claim:

- 1. A machine for lining non-circular can ends, comprising in combination, a non-rotating can end support for holding the can ends to be lined, a rotating lining head mounted above said support. a shaft for rotating said head and disposed in axial alignment with the can ends to be lined,

a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means for guiding said nozzle in a path coincident with the lining channel of said held can end as the nozzle is carried around with said rotating head, and means for retarding or advancing said nozzle movement along its guided path for controlling the speed of travel of said nozzle to cause it to move along said can end channel with a uniform rate of lineal speed.

2. A machine for lining irregular shaped can ends, comprising in combination, a non-rotating can end support for holding the can ends to be lined, a rotating lining head mounted above said support, a shaft for rotating said head and disposed in axial alignment with the can ends to be lined, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can'end, a stationary cam track for holding said nozzle over and for guiding it in a path coincident with said can end channel as it is carried around with said rotating head, and a second stationary cam track for altering the position of said nozzle relative to said lever unit for dispensing a lining material 7 into the channel of a said held can end, means for shifting said nozzle relative to said lever unit to guide it in a path coincident with said can end channel, and means for pivotally moving said lever unit relative to said rotating head to cause it to move with a uniform rate of lineal speed along the can end surface being lined.

4. A machine for lining irregular shaped can ends, comprising in combination, a non-rotating can end support for the can. ends to be lined, means for clamping a can end in lining position, a rotating lining head mounted above said support, a shaft for rotating said head at a uniform speed of travel, said shaft being disposed centrally of the head in axial alignment with the can ends to be lined, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means cooperating with said head rotating means for holding said nozzle over the can end lining channel, and means cooperating with said last mentioned means and with said rotating head for shifting the nozzle relative to said head and for effecting a uniform speed of said nozzle along the surface being lined.

5. A machine for lining irregular shaped can ends, comprising in combination, a non-rotatingmeans for shifting the position of said nozzle relative to said head and while moving in its path coincident with said can and channel to insure uniform rate of speed of the nozzle, and

conveying means for advancing said can ends to said can end support.

I 6. A machinefor lining irregular shaped can ends, comprising in combination, a non-rotating can end support for holding the can ends to be lined, a rotating lining head mounted in axial alignment with and above said support, a compound lever unit pivotally connected to said head, a dispensing nozzle carried by said lever unit for dispensing a hiring material into the channel of said held can end, means operating through a part of said lever unit for holding said nozzle in a path coincident with said can end channel, means operating through other parts of said lever unit for shifting said nozzle along its path to insure its uniform speed of travel around said can end channel, means for raising said can end support to position its held can end adjacent said nozzle, and conveying means for advancing said can ends to said can end support.

'7. A machine for lining irregular shaped can ends, comprising in combination, a non-rotating can end support for holding the can ends to be lined, a rotating lining head mounted in axial alignment with said support, a. dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of said held can end, means for holding said nozzle over and for guiding it in a path coincident with said channel, means for rotating said head at a uniform speed of travel, means for shifting the position of said nozzle relative to said head to insure uniform rate of lineal speed of the nozzle, means for raising said can end support to position its held can end for lining, and means operating subsequent to such can and raising for opening said nozzle to discharge its lining material.

8. A machine for lining irregular shaped can ends, comprising in combination, a magazine for holding can ends in stack formation, a nonrotating can end support for holding individual can ends to be lined, conveying means for advancing a said can end from said stack and for placing it on said support, a rotating head mounted above said support, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means for controlling the position of said nozzle during its rotation with said head to position it over said can end channel, and

means for controlling the rate of lineal speed of said nozzle in all positions of its rotation around said can end channel path to insure uniform deposit of the lining material therein.

9. A machine for lining irregular shaped can ends, comprising in combination, a magazine for holding can ends in stack formation, a non-- rotating can end support for holding individual can ends to be lined, means for separating individual can ends from said stack and for delivering them to a position in the bottom of said magazine, conveying means for advancing a said separated can end from said stack and for placing it on said support, a rotating head mounted above said support, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means for lifting said can end support to raise a superimposedend thereoninto lining position, means for controlling the position of said nozzle during its rotation with said head to posupport, a dispensing nozzle carried by said ro-.

tating head for dispensing a lining material into the channel of a said held can end, means for moving-said nozzle radially with respect to said rotating head, means for lifting said can end support to raise a superimposed end thereon into lining position, a valve for said nozzle, a locking device for holding said valve closed while said rotating head and nozzle continue their rotary movements to prevent discharge from said nozzle,

said device being unlocked by thev raising of aproperly positioned can end, and actuating means for opening said valve after the unlocking of said locking device.

11. A machine for lining irregular shaped can ends, comprising in combination,. a non-rotating can end support for holding individual can ends-- to be lined, a rotating head mounted above said support, a dispensing nozzle carried by said ro-- tating head for dispensing a lining material into the channel of a said held can end, means for moving said nozzle radially with respect to said rotat ing head, means for lifting said can end support toraise a superimposed end thereon into lining position, a valve for said nozzle, a locking device for holding said valve closed to prevent discharge from said nozzle while said rotating head and nozzle continue their rotary movements, said device being unlocked by the lifting of said can end on its support, and a manual control lever also operable to prevent opening of said valve independent of the holding feature of said locking device. v

12. A machine for lining irregular shaped can ends, comprising in combination, a non-rotating can end support for holding individual can ends to be lined, a rotating head mounted above said support, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means for moving said nozzle radially with respect to said rotating head, a valve for said nozzle, amanual control lever for locking said valve against movement to prevent discharge of the lining material from said nozzle, and means associated with said control lever for preventing operation of the machine.

13. A machine for lining irregular shaped can ends, comprising in combination, a non-rotating can end support for holding individual can ends to be lined, a rotating head mounted above said support, a dispensing nozzle carried by said rotating head for dispensing a lining material into the channel of a said held can end, means for moving said, nozzle radially with respect to said rotating head, a. valve for said nozzle, a manual control lever for locking said valve against movement to prevent discharge of the lining material from said nozzle, an electric motor for operating said machine, and means including an electric switch located in said motor circuit and operable by said control lever for breaking said motor circult and preventing operation of the machine.

MATTHEWLEEHEALD. 

